A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Estimate the area of the circle, use 22/7 for π
anonymous
 one year ago
Estimate the area of the circle, use 22/7 for π

This Question is Closed

Sachintha
 one year ago
Best ResponseYou've already chosen the best response.1Use the equation \[2\pi r^2\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Area of a circle is \[\large A=\pi \times r^{2}\] Right now we have the diameter, which is 28. To get the radius, we have to divide the diameter by 2. So \[\large \frac{28}{2}=r\] Once you get the r tell me and we'll plug it into the area of a circle formula :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Sachintha it looks like you combined the circumference formula and area formula together.

Sachintha
 one year ago
Best ResponseYou've already chosen the best response.1Sorry my mistake.. :D

Sachintha
 one year ago
Best ResponseYou've already chosen the best response.1@TheMathAsker Give it a try as @LegendarySadist said.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Right. And since we're using 22/7 for pi, it would look like this \[\large A=\frac{22}{7} \times 14^{2}\] The next step is to find 14^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yep that would be it, good job :). So now we are gonna multiply 196 by 22/7. Which will look like this \[\large A=\frac{22*196}{7}\] So our next step is to find 196*22

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Right, good job. Now we have to divide 4312 by 7. Which will look like this \[\large A=\frac{4312}{7}\] This is gonna be our final step :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yep, that would be our answer, so \[\large A=616\] or more specifically \[\large A=616cm^{2}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you so much !!!!!! c:

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\huge \color{aqua}N\color{fuchsia}o \space \color{lime}P \color{orange}r \color{blue}o \color{maroon}b \color{red}l \color{olive}e \color{purple}m \ddot\smile \]
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.